#51DDFC#51DDFC

#51DDFC is a very light, vivid cyan. Relative luminance 0.605; OKLCH L 83.5% C 0.125 H 215.5°. Best body text is #000000 at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#51DDFC
RGB	rgb(81, 221, 252)
HSL	hsl(191, 97%, 65%)
HSV	hsv(191, 68%, 99%)
CMYK	cmyk(67.9%, 12.3%, 0%, 1.2%)
CIE-LAB	lab(82.10, -27.99, -26.09)
CIE-LCH	lch(82.10, 38.27, 223.00°)
OKLab	oklab(83.46% -0.102 -0.0727)
OKLCH	oklch(83.46% 0.125 215.5)
XYZ	xyz(46.8131, 60.4852, 101.2842)
Luminance	0.6049 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DDFC #FC7051

analogous

#51FCC5 #51DDFC #5188FC

triadic

#51DDFC #FC51DD #DDFC51

tetradic

#51DDFC #C551FC #FC7051 #88FC51

square

#51DDFC #C551FC #FC7051 #88FC51

split-complementary

#51DDFC #FC5188 #FCC551

monochromatic

#04AACF #15D1FB #51DDFC #8DE9FD #C9F5FE

Accessibility & contrast

On white

1.60

#51DDFC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.10

#51DDFC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DDFC

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DDFC	#FFFFFF	#000000	##000000
##51DDFC	1.00	1.60	13.10	13.10
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.10	21.00	1.00	1.00
##000000	13.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7D6FE

Deuteranopia (green-blind)

#AFC5FC

Tritanopia (blue-blind)

#00E8E7

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #51ddfc;
/* rgb */ color: rgb(81, 221, 252);
/* oklch */ color: oklch(83.5% 0.125 215.5);

Tailwind

colors: {
  custom: {
    50: '#96e8fd',
    500: '#51ddfc',
    950: '#000000',
  },
}

SCSS

$custom: #51ddfc;
$custom-light: #96e8fd;
$custom-dark: #000000;

JSON

{
  "hex": "#51ddfc",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 252
  },
  "hsl": {
    "h": 190.877,
    "s": 96.61,
    "l": 65.294
  },
  "oklch": {
    "l": 0.83461,
    "c": 0.12526,
    "h": 215.5
  },
  "luminance": 0.60491
}

Semantic roles & 50–950 ramp

primary

#51DDFC

secondary

#CA4527

accent

#2A00E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1617

muted

#808485

Preview Lab

Preview with #51DDFC

Body copy rendered with the generated semantic roles for this colour.

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